JGame is a small multiplatform 2D game engine. It runs on the Java JRE 1.3+ platform, the J2ME (MIDP2.0/CLDC1.1) mobile platform, and the Android (2.1+) platform. It provides a very high-level framework for "classic" type arcade games.

An experiment in paired-programming to simulate elevator behaviour. Development is done entirely in Java. The finished product will provide a framework for additional simulations and some ability to test different elevator behaviours.

A map editor for Civilization 4. It is designed to make creating static maps' basic features much simpler. The first public version features cut-copy-paste, and optional conveniences like: Auto coastline, auto latitiude climate, and more

The Magellan Client is basically a GUI for the PBEM (play by email) game Eressea, but can be used for other "Atlantis" based games, too. -- Magellan ist die am weitesten entwickelte graphische Oberfläche für Eressea, das Email-Fantasy-/Strategiespiel

The rainbow jewels have been abducted from the temple of the rainbow colors, and the world will slowly bleach out if you can't retrieve them.
The hunt for the lost rainbow jewels is a single player RPG with an isometric (2.5D) display. It's written in Java and uses the LWJGL library for display and sound.
News: In early 2015, I started a new project, called "Imp City", using the Jewelhunt codebase to implement a new game, kind of a crossover of a Settlers type game and Dungeon Keeper. At the moment, the codebase is 100% shared between the two projects.

Motherload Unlimited (MLU) is a remake of the action-adventure game originally designed by XgenStudios, Motherload. We've been working on it for a couple of years using various game engines. Current version is a Java applet.

Java Behaviour Trees is a Java framework for easily building and running generic behaviour trees. Here, "behaviour tree" refers to the technique used to control the behaviour of characters in video games.
IMPORTANT NOTE: our source code has been moved to GitHub. You will find it at:
https://github.com/gaia-ucm/jbt
Note however that all the binary files will still be distributed here at SourceForge.

jTarot is a tarot personal advisor. jTarot will do a "reading" for you when you need advice. A reading displays a number of cards and then describes what these cards mean. You take the reading and apply the meanings of the cards to your situation.